Struct Builder 

pub struct Builder<G: Gate, E: Render = NoRender> { /* private fields */ }

Declares an application. Every mistake is reported by build at once, before anything listens.

Implementations

impl<G: Gate, E: Render> Builder<G, E>

pub fn compress(self, compression: Compression) -> Self

Compress replies with gzip when the client accepts it: HTML, CSS, JavaScript, JSON, XML, SVG, and other text, over a minimum size. Off by default: a proxy in front usually compresses.

pub fn csrf(self, csrf: Csrf) -> Self

CSRF protection with csrf-sec (re-exported as web_net::csrf_sec), built from a persisted 32-byte key. Required as soon as one route takes an unsafe method and is not exempt.

web-net always applies the origin policy and a token, whatever the Csrf’s Mode; its keys, lifetimes, and allowed origins apply as set.

pub fn redirect_hosts(self, hosts: &[&str]) -> Self

Hosts that Cx::redirect_external may send a visitor to (accounts.example.com). Everything else is refused.

pub fn assets(self, assets: Assets) -> Self

Serves a folder of files under a mount path, before routing and without the gate (files are public).

pub fn health(self, path: &str) -> Self

A liveness path (/healthz): 200 ok whenever the process answers. Answered before routing and without the gate.

pub fn ready( self, path: &str, check: impl Fn() -> bool + Send + Sync + 'static, ) -> Self

A readiness path (/readyz): 200 ready when check says so, 503 not ready otherwise. Keep check to a flag read: it runs on the request path.

pub fn security_headers(self, policy: SecurityHeaders) -> Self

The security headers every reply carries (default SecurityHeaders::default).

pub fn route(self, route: Route<G::Identity, G::Rule, E>) -> Self

Adds a route.

pub fn group(self, group: Group<G::Identity, G::Rule, E>) -> Self

Adds a group’s routes.

pub fn hook<F>(self, hook: Hook, routes: Routes, f: F) -> Self

where F: Fn(&mut Cx<'_, G::Identity, E>) -> Result + Send + Sync + 'static,

Runs f at hook for the routes routes selects.

pub fn host(self, host: &str) -> Self

A host the site answers (example.com, or localhost:8080 with its port). The first one is canonical. With no host declared the site answers any host; with hosts declared, any other host gets 421.

pub fn alias(self, host: &str) -> Self

A host that is redirected (301, or 308 for unsafe methods) to the canonical host (www.example.com to example.com).

pub fn development(self) -> Self

A development instance: localhost, 127.0.0.1, [::1], and *.localhost are answered as the site (with any port), and HTTPS is not required for them. Never set this in production: it is the only way a Host: localhost is trusted.

pub fn base(self, base: &str) -> Self

The path the site is installed under (/blog). It is removed before routing and added back by Cx::url, so routes and links are written as if the site were at /. Requests outside it get 404.

pub fn trailing_slash(self, policy: TrailingSlash) -> Self

The trailing-slash policy (default TrailingSlash::Strip).

pub fn lowercase_paths(self) -> Self

Paths are lower case: one with an upper-case letter is redirected.

pub fn https_only(self) -> Self

Plain HTTP is redirected to HTTPS on the canonical host (behind a TLS proxy, serve-net must trust the proxy’s scheme). Needs a host.

pub fn sign_in(self, path: &str) -> Self

The site-relative sign-in page. A Denial::sign_in on a GET or HEAD is then answered with a 303 to it, the page asked for passed as next; without it, or for other methods, the answer is 401.

pub fn challenge(self, challenge: &str) -> Self

The WWW-Authenticate challenge sent with a 401 (default Session).

pub fn events(self, events: impl Events) -> Self

Where refusals, denials, and failures are reported.

pub fn checkpoint(self, checkpoint: impl Checkpoint) -> Self

The in-flight revocation check at web-net’s stages.

pub fn page_limit(self, bytes: usize) -> Self

The budget for one rendered page (default 8 MiB).

pub fn wipe_buffers(self) -> Self

Zero the reply buffers web-net reuses after every request, so one visitor’s page never lingers in memory another request reuses. Costs one pass over the bytes written.

pub fn build(self) -> Result<App<G, E>, BuildError>

Compiles the application.

Errors

A BuildError listing every problem: a route without declared access, a malformed pattern, two handlers for one method of one path, an unknown template, a malformed host or base path.

impl<G: Gate> Builder<G, NoRender>

pub fn render<E: Render>(self, engine: E) -> Builder<G, E>

The template engine. Set it before adding routes and hooks: their handlers are typed by it, so any added before are dropped and the build says so.

Trait Implementations

impl<G: Gate, E: Render> Debug for Builder<G, E>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.